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Laboratory observations on internal solitary wave evolution on steep and inverse uniform slopes

机译：陡峭和反向均匀斜坡上内部孤立波演化的实验室观测

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Laboratory experiments were conducted to investigate the evolution of internal solitary waves of depression or elevation type reflecting from steep slope in a stratified two-layer fluid system. Environmental settings considered in these experiments included the upper and lower layer thickness, the difference in interface levels and inclination of uniform slope, etc. Physical phenomenon and dynamic mechanism of wave fluctuations are discussed in the course of wave breaking and evolution on the slope. Based on the experimental results available, criteria governing wave evolutions are proposed for an internal wave of depression or elevation encountering uniform slope from normal to inverse configuration. A mirror-image model is hypothesized to provide a generic description of the physical consequences leading to wave breaking and mixing on a wide range of uniform slopes. In addition, mixing efficiency resulting from wave breaking was found to approach a maximum value of 25% when the characteristic length ratio was around 0.5, with a reduction in efficiency for slopes on either side of this peak.
机译：进行了实验室实验，以研究在分层的两层流体系统中从陡坡反射的凹陷或高程型内部孤立波的演化。这些实验所考虑的环境设置包括上下层的厚度，界面水平的差异以及均匀斜坡的倾斜度等。在斜坡破裂和演化过程中，讨论了波浪起伏的物理现象和动力机制。根据现有的实验结果，提出了一个凹陷波或高程波遇到从正态到逆态的统一斜率的内部波动的准则。假设使用镜像模型来提供物理后果的一般描述，这些物理后果导致在大范围的均匀斜率上发生波折和混合。另外，发现当特征长度比为约0.5时，由波浪破坏引起的混合效率接近25％的最大值，该峰的任一侧的斜率的效率降低。

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